The invention discloses a fermenting 
bed with microbial paddings. The fermenting 
bed provided by the invention comprises an upper layer and a lower layer. The upper layer has a thickness of 30-40 cm and comprises 30-70wt% of 
sawdust and 30-70wt% of rice husks; the upper layer is prepared by adding 5-10kg of rice 
bran, 50-200g of environment-friendly 
bacillus subtilis preparation into per cubic meter of the mixture of 
sawdust and rice husks, mixing and fermenting, wherein the 
moisture content is controlled at 40-50%. The lower layer has a thickness of 40-50 cm and comprises 
sawdust, rice husks, rice 
bran and environment-friendly 
bacillus subtilis preparation; and the 
moisture content is 20-30%. By using the fermenting 
bed provided by the invention, the pig 
manure degradation using a microbial preparation is guaranteed, so as to realize 
energy conservation and emission reduction. Since the paddings with different 
moisture contents are laid at different 
layers in the pit of the fermenting bed, the permeability management of the entire fermenting bed and the padding moisture content regulation are enhanced, the moisture content at the lower layer of the fermenting bed is reduced, the 
activity regulation of the microbial preparation 
viable count in the paddings is promoted, and the service lives of the paddings are prolonged, thereby obtaining a better 
sewage treatment effect.